Re: [CAD_CAM_EDM_DRO] fine-pitch threadcutting on thinwall tubing

One good solution in the mentioned case would be tread roling but you
really need to back up your material. And agian an application only
suitable for big production!
Sven Peter

Doug Fortune wrote:

>
> Brian wrote:
> >
> > Hi, it takes a lot of patience and practice. thread galling is a real
> > problem no matter what the material. I worked on a project for a screw
> > machine shop, it took about a year before the tap design, machine tight
> > enough, and feed steady enough. Must be watched constantly as the slightest
> > build up of chips will ruin the part. holding the part is also a challange.
> > a new cnc machine can do multipass single point quite well.
>
> This sounds like a neat challenge for DaveK and his TurboCNC.
> http://www.dakeng.com/turbo.htm TurboCNC
> http://www.dakeng.com/lathe.html 7x10 mini-lathe cnc conversion
>
> He has recently got lathe threading working, and I believe he
> mentioned he made 20 passes at his 1/4-20 thread (yes, his is
> a very small lathe).
>
> Doug Fortune
> http://www.cncKITS.com
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